Home / 12,013.74-18,028.44-5,440.59

Finding the Fourth Proportional to 12,013.74, 18,028.44 and 5,440.59

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Solution

The fourth proportional to 12,013.74, 18,028.44 and 5,440.59 is: 8,164.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.74 : 18,028.44 = 5,440.59 : x
  2. Step 2: Convert to fraction form
    12,013.74/18,028.44 = 5,440.59/x
  3. Step 3: Cross multiply
    12,013.74x = 18,028.44 × 5,440.59
  4. Step 4: Simplify right side
    12,013.74x = 98,085,350.38
  5. Step 5: Solve for x
    x = 98,085,350.38/12,013.74
  6. Step 6: Final answer
    x = 8,164.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.